chat: автоподключение к узлам группы (вкл/выкл) + ручной connect к узлу (desktop+android); фикс reinit при QR-join

tools/chatgui/src/settingsdialog.cpp

@@ -96,6 +96,10 @@ SettingsDialog::SettingsDialog(const QString& configPath, DbManager* db, UtunNod
         "QComboBox { border: 1px solid palette(mid); border-radius: 4px;"
         " padding: 6px 10px; font-size: 13px; background: palette(base); }");
     profLayout->addRow(joinLabel, m_joinPolicyCombo);
+
+    m_autoConnectCheck = new QCheckBox("Auto-connect to group nodes", profilePage);
+    m_autoConnectCheck->setStyleSheet("font-size: 13px;");
+    profLayout->addRow(m_autoConnectCheck);
     m_pages->addWidget(profilePage);
 
     // Storage page
@@ -181,6 +185,7 @@ SettingsDialog::SettingsDialog(const QString& configPath, DbManager* db, UtunNod
         m_sortCombo->setCurrentIndex(sortMode == 1 ? 1 : 0);
         int joinPolicy = db->getUiStateInt("join_policy", 1);
         m_joinPolicyCombo->setCurrentIndex(joinPolicy >= 0 && joinPolicy <= 2 ? joinPolicy : 1);
+        m_autoConnectCheck->setChecked(db->getUiStateInt("group_autoconnect", 1) != 0);
     }
     m_networkPage->loadFromConfig(m_configPath);
     m_soundPage->loadFromDb();
@@ -295,6 +300,23 @@ void SettingsDialog::onSave() {
             postChatSetting(m_configPath, "join_policy", v);
         }
     }
+
+    /* save group_autoconnect */
+    {
+        const char* key = "group_autoconnect";
+        int v = m_autoConnectCheck->isChecked() ? 1 : 0;
+        QByteArray val = QByteArray::number(v);
+        size_t klen = strlen(key), vl = (size_t)val.size(), total = klen + 1 + vl + 1;
+        if (total <= 256) {
+            void* arg = u_malloc(total);
+            memcpy(arg, key, klen + 1);
+            memcpy((char*)arg + klen + 1, val.constData(), vl + 1);
+            gui_bridge_post_uasync_fn(chat_core_save_ui_state_trampoline, arg);
+        }
+        if (!m_configPath.isEmpty()) {
+            postChatSetting(m_configPath, "group_autoconnect", v);
+        }
+    }
     accept();
 }